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Finding the Fourth Proportional to 300,808.68, 451,226.56 and 98,416.32

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Solution

The fourth proportional to 300,808.68, 451,226.56 and 98,416.32 is: 147,628.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,808.68 : 451,226.56 = 98,416.32 : x
  2. Step 2: Convert to fraction form
    300,808.68/451,226.56 = 98,416.32/x
  3. Step 3: Cross multiply
    300,808.68x = 451,226.56 × 98,416.32
  4. Step 4: Simplify right side
    300,808.68x = 44,408,057,521.46
  5. Step 5: Solve for x
    x = 44,408,057,521.46/300,808.68
  6. Step 6: Final answer
    x = 147,628.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.